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ivanzaharov [21]
4 years ago
11

South America's greatest river system is the ___________.

Mathematics
2 answers:
Pie4 years ago
7 0
Amazon is the answer :)
azamat4 years ago
4 0

Answer:

amazon

Step-by-step explanation:

its the biggest

You might be interested in
Find the slope of each set of points.
Elza [17]

Answer:

1. (4, 3) and (-3, 4) has  Slope  = -1/7  

2.(-2, 0) and (8, -4) has Slope  = -2/5

Step-by-step explanation:

If two such points (a,b) and (c,d) are given, then the slope S is given as:

S = (\frac{d-b}{c-a} )

Now here, the given set of points are:

1. (4, 3) and (-3, 4)

Here, the slope S  = (\frac{4-3}{-3-4})  = (\frac{1}{-7})  = -(\frac{1}{7})

⇒ S  = -1/7

1. (-2, 0) and (8, -4)

Here, the slope S  = (\frac{-4-0}{8-(-2)})  = (\frac{-4}{10})  = -(\frac{2}{5})

⇒ S  = -2/5

5 0
3 years ago
A card is drawn from a standard deck of 52 cards. What is the theoretical probability of drawing an Ace? (Hint: A standard deck
xxMikexx [17]

Answer:

The probability of picking up an ace in a 52 deck of cards is 4/52 since there are 4 aces in the deck. The odds of picking up any other card is therefore 52/52 - 4/52 = 48/52.

Step-by-step explanation:

7 0
3 years ago
A sample of 1800 computer chips revealed that 53% of the chips do not fail in the first 1000 hours of their use. The company's p
charle [14.2K]

Answer:

So the value of the test statistic is -0.85.

Step-by-step explanation:

We know that a sample of 1800 computer chips revealed that 53% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature states that 54% of the chips do not fail in the first 1000 hours of their use.

We get that:

n=1800\\\\p_1=53\%=0.53\\\\p_2=54\%=0.54\\

We calculate the standar deviation:

\sigma=\sqrt{\frac{0.53 \cdot (1-0.53)}{n}}=\sqrt{\frac{0.53 \cdot 0.47}{1800}}=0.01176

We calculate the value of the test statistic:

z=\frac{p_1-p_2}{\sigma}=\frac{0.53-0.54}{0.01176}=-0.85

So the value of the test statistic is -0.85.

5 0
4 years ago
Rearrange h=d/3+2 to make d the subject
yarga [219]

Answer:

d = 3(h - 2)

Step-by-step explanation:

h = d/3 + 2

taking 2 to the right hand side

h - 2 = d/3

multiplying both sides by 3

3(h - 2) = d

therefore

d = 3(h - 2)

3 0
3 years ago
Cuál sería la respuesta a esto? La señora María obtuvo un préstamo de 5 millones otorgado por un banco, para devolver el préstam
Lubov Fominskaja [6]

Answer:

La señora María debe pagar 463.635 guaraníes por concepto de intereses,

Step-by-step explanation:

Se recomienda utilizar el modelo de interés compuesto puesto que la tasa de interés es constante y periódico, dado que se conoce el monto a pedir prestado, la tasa de interés y el número de anualidades, se obtiene el monto final. La cantidad de dinero a pagar es la diferencia entre ese resultado y el monto a ser prestado.

El modelo de interés compuesto es representado por la siguiente fórmula:

C(t) =C_{o}\cdot (1+r)^{t} (1)

Donde:

C_{o} - Cantidad de dinero a prestar, medida en guaraníes.

r - Razón de interés interanual, adimensional.

t - Anualidad, medida en años.

C(t) - Cantidad de dinero asociada a la anualidad actual, medida en guaraníes.

Si sabemos que C_{o} = 5.000.000, r = 0.03 y t = 3, entonces la cantidad de dinero asociada al término del período de préstamo es:

C(3) = 5.000.000\cdot (1+0.03)^{3}

C(3) = 5.463.635

Finalmente, la cantidad de dinero a pagar por concepto de intereses es:

\Delta C = 5.463.635-5.000.000

\Delta C = 463.635

La señora María debe pagar 463.635 guaraníes por concepto de intereses,

3 0
3 years ago
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